1385458164 has 36 divisors (see below), whose sum is σ = 3504989124. Its totient is φ = 461442432.

The previous prime is 1385458133. The next prime is 1385458187. The reversal of 1385458164 is 4618545831.

1385458164 is a `hidden beast` number, since 1 + 3 + 8 + 5 + 4 + 581 + 64 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 461906064 + 923552100 = 21492^2 + 30390^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30904 + ... + 61040.

It is an arithmetic number, because the mean of its divisors is an integer number (97360809).

Almost surely, 2^1385458164 is an apocalyptic number.

It is an amenable number.

1385458164 is an abundant number, since it is smaller than the sum of its proper divisors (2119530960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1385458164 is a wasteful number, since it uses less digits than its factorization.

1385458164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31424 (or 31419 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 1385458164 is about 37221.7431617596. The cubic root of 1385458164 is about 1114.8021699197.

The spelling of 1385458164 in words is "one billion, three hundred eighty-five million, four hundred fifty-eight thousand, one hundred sixty-four".